Spatial Manager Desktop™ - FAQs: Spatial queries

Introduction

• Objective of this section
  • To perform spatial queries among features of a map using different spatial operations

• Topics in this section
  • Base selection: features defining the base of the query
  • Spatial operations: diverse types of spatial operations and the layer on which the operation is applied

What are Spatial queries in Spatial Manager Desktop™?

Spatial queries are geometric operations that Spatial Manager Desktop™ can perform to help you locate Features that interferes with other Features under some conditions. For example, as you can see in next picture, to locate which points of a Layer are found within the polygons of another Layer

File:SQ-1.PNG

How can I define an Spatial query in Spatial Manager Desktop™?

To define an Spatial query in Spatial Manager Desktop™, you need to define the base of the query first, by selecting the Features to operate, next you must select the "Spatial query" function, and then you will select a Layer to query and the type of operation to perform. When you select the Features to operate, you can select a full layer if you want to perform an interference operation between two full Layers

Which are the types of operations for Spatial queries in Spatial Manager Desktop™?

The list of operations that Spatial Manager Desktop™ can perform using Spatial queries is the following:

• Intersects
• Touches
• Within
• Contains
• Disjoint
• Overlaps
• Crosses

To know more about every operation, you can take a look at this document (pages 2-15 to 2-20): OpenGIS Simple Features Specification

Related links

• Spatial Queries using SHP files